Along with buying a replacement CDM4 /19 I also decided to purchase a back-up disc clamp. To me, the clamp looks like something I could accidentally drop, sit on, or misplace. I ended up buying the clamp directly from Jays Audio and Vinshine is sending it.
Since I was in comunication with Jays I thought I would verify the info for myself, so I asked:
"Thanks for the quick shipping of the clamping disc.
Could you please answer a question. Many potential buyers are afraid the CDM4 laser might break down, at some point, and the buyer won't be able to find a replacement. Because this could be a possibility I purchased a CDM4 /19 replacement laser - just in case.
Did I buy the correct model CDM4? If not, what is the correct model?
Thank you again,
Tim"
The answer from Jays
"Hi Tim,
You're most welcome. The CDM4/19 is the correct laser for CDT2-MK2 :)"
I used the link nonoise supplied in his post above - dated Nov 30, 2018. My cost with shipping came to $43.58.